Dab tsi yog daim ntawv thov ntau yam ntawm combustible gas detector
Qhov kev tshawb nrhiav ntau yam ntawm cov khoom siv hluav taws xob hluav taws xob feem ntau nyob hauv 0-100 feem pua LEL. Yog tias qhov kuaj pom cov pa tawm hluav taws xob pom tau ntau dua 25 feem pua LEL thiab tsawg dua 50 feem pua LEL, lub tshuab hluav taws xob hluav taws xob hluav taws xob yuav tawm lub tswb qis. Yog tias qhov ntsuas tau pom cov pa tawm hluav taws xob ntau dua 50 feem pua LEL, lub tshuab hluav taws xob hluav taws xob hluav taws xob yuav xa tawm lub suab nrov thiab lub teeb ceeb toom thiab ceeb toom ntxov kom txhim kho cov neeg ua haujlwm hauv chaw tswj hwm cov roj hluav taws xob hauv ib puag ncig, yog li raws li kom ua tiav kev nyab xeeb thiab ua haujlwm tau zoo.
Lub combustible gas detector yuav ntes tau ntau combustible gases, xws li natural gas, liquefied petroleum gas, gas, ethane, acetylene, butane, n-butane, isobutane, pentane, hexane, halogenated hydrocarbons (chloromethane, methylene chloride, trichloroethane vinyl). , cawv (methanol, ethanol, propanol), ethers, ketones (butanone, acetone), hydrogen, toluene thiab lwm yam sib txuas (gasoline, industrial solvents, lacquers, thinners, coolant, dry cleaning fluid, methyl acetate, etc.).
LELs yog dab tsi?
LEL hais txog qhov txo qis ntawm cov pa roj. Thaum combustible gas, combustible kua vapor (los yog combustible plua plav) yog tov nrog huab cua thiab mus txog ib tug tej yam concentration, nws yuav tawg thaum nws ntsib qhov hluav taws kub. Qhov ntau ntawm cov concentration uas tuaj yeem ua rau tawg yog hu ua qhov txwv tsis pub tawg. . Qhov qis tawg txwv ntawm txhua qhov roj sib txawv.
Piv txwv li, qhov txwv tsis pub tawg ntawm hydrogen: qhov txwv qis dua yog 4.0 feem pua, thiab qhov txwv sab saud yog 74.2 feem pua. Nws yuav hlawv thiab tawg thaum nws ntsib huab cua thiab qhib nplaim taws. 4%. Yog tias nws tsawg dua qhov kab hauv qab no, nws yuav tsis hlawv thaum nws ntsib cov nplaim taws, thiab nws yuav tsis tawg. 74.2 feem pua yog qhov txwv siab tshaj plaws (lossis sab sauv txwv) ntawm feem ntau tshaj plaws. Thaum lub ntim feem ntau siab dua qhov kev txwv saum toj no, nws tuaj yeem hlawv yam xyuam xim thiab yuav tsis tawg thaum nws ntsib huab cua thiab qhib nplaim taws. Nyob rau hauv ib lo lus, qhov ntau qhov uas qhov ntim feem qis qis los yog qis dua qhov kev txwv tawg yuav tsis tawg thaum raug hluav taws kub.
Lub catalytic combustion gas detector yog siv los saib xyuas qhov kev hloov pauv ntawm cov pa roj combustible nyob ib puag ncig huab cua los ntawm 0 mus rau 100 feem pua LEL. Lub sensor siv catalytic combustion technology thiab lub sensor tuaj yeem hloov pauv hauv thaj chaw. Catalytic combustion sensors yog rhiab heev rau ntau yam combustible gases. Cov txheej txheem no feem ntau siv tau rau cov pa hluav taws xob.
Lub combustible gas detector yog ib tug gas detector ntsia thiab siv nyob rau hauv industrial thiab pej xeem vaj tse uas teb rau cov concentration ntawm ib los yog ntau combustible gases. Muaj ob hom kev ntsuas roj combustible uas feem ntau siv hauv lub neej txhua hnub: catalytic combustible gas detectors thiab semiconductor combustible gas detectors.
Cov khw noj mov, tsev so, chav ua haujlwm hauv tsev thiab lwm qhov chaw uas siv cov pa roj, cov pa roj carbon monoxide, thiab cov roj av liquefied feem ntau yog siv cov khoom siv hluav taws xob semiconductor-hom combustible gas detectors, thiab cov chaw ua lag luam uas emit combustible gas thiab combustible steam mas siv catalytic combustible gas detectors.
